Track record: At a tryout for a Cuban catcher, the Phillies were instead drawn to Sanchez, an eligible 16-year-old converted catcher who had quick, easy arm action and a fastball that reached the low 90s. They signed him shortly after that for $35,000. Sanchez spent his first year getting acclimated in the Dominican Summer League, then had a breakthrough in 2016 in the Rookie-level Gulf Coast League, where he led the league with an 0.50 ERA while running his fastball up to 98 mph. Sanchez became one of the game's elite pitching prospects in 2017, reaching high Class A Clearwater just after his 19th birthday and touching 100 mph. In 2018, Sanchez showed electric stuff but made just eight starts before being shut down for the year with right elbow inflammation. The Phillies had hoped Sanchez would pitch in the Arizona Fall League, but a sore collarbone prevented him from playing there. They then included Sanchez as the primary piece in a trade to the Marlins for J.T. Realmuto in early February.

Scouting Report: Few pitching prospects in the minors can match Sanchez's blend of premium stuff, control and easy, athletic delivery. His fastball explodes on hitters, parking in the mid-90s and regularly touching 100 mph. Unlike many other young flamethrowers, Sanchez doesn't have any issues throwing his fastball over the plate, as he's an advanced strike-thrower who and he projects to have plus or better control. While the injury cut Sanchez's 2018 season short, he still showed exciting progress by turning his slider into a wipeout pitch with two-plane tilt that misses bats against both lefties and righties. That's in addition to his changeup, which flashes plus with good sink and running action. If Sanchez can maintain the progress he showed with his slider before getting injured, his strikeout rate could spike as he mixes that in and gains a better understanding of how to sequence hitters. He is a good athlete who fields his position well and generates his velocity without much effort to his mechanics.

The Future: The 95 innings Sanchez threw in 2017 were a career high, so he still has to prove his durability. But if he shows he can handle a starter's workload, he could develop into a true frontline starter along the lines of the Yankees' Luis Severino. He's advanced enough to go to Double-A Jacksonville in 2019 with a chance to get to Miami by the end of the season.

Track Record: The Rays went into the penalty box with a massive 2014 international signing class. Despite whiffing on their biggest signing, Adrian Rondon, the class has proven to be an outstanding influx of talent with Ronaldo Hernandez, Diego Castillo and Resly Linares. But the most productive of those signees has been Sanchez, who has hit better than .300 at every stop until a late-season struggle at Double-A Montgomery.

Scouting Report: Sanchez has elite bat speed and excellent hand-eye coordination, which gives him a path to being an above-average hitter with 25-plus home run power. He can drive balls in or out of the zone, which is an asset and weakness, because he swings and connects with pitches he should take. Sanchez's barrel control keeps him from striking out too much. Unlike many young lefthanded hitters, he has little trouble hitting lefthanders. He consistently posts some of the best exit velocities in the Rays' system. Sanchez has an odd gait, but he consistently turns in plus run times and is an impressive athlete. Defensively, he should be at least average in right field with an average arm.

The Future: Sanchez will return to Montgomery in 2019. He profiles as an athletic everyday right fielder one whose swing and body type offers reminders of the late Cardinals outfielder Oscar Taveras.

Bleday entered his junior season in 2019 as one of the most respected college hitters in the country. After pacing the Commodores in hitting during his sophomore season last spring (.368/.494/.511), Bleday went to the Cape Cod League. There, he showed solid power and hitting ability with a wood bat, posting a .311/.374/.500 slash line with five home runs in 36 games. With a balanced stance, smooth swing, solid bat speed and a refined approach with more walks than strikeouts in his college career, Bleday had the look of a high-floor hitter with a plus hit tool. However, there were initially some questions surrounding his ability to consistently impact the baseball. Bleday has answered those question this spring, as he has regularly tapped into the plus raw power that he’d previously been unable to reach during games. After hitting just six home runs through his first 90 games with Vanderbilt in 2017 and 2018, Bleday is among the country’s leaders in home runs in 2019. He hit 20 home runs through his first 41 games—upping his isolated power from .143 as a sophomore to over .420 as a junior—while continuing to post impressive strikeout and walk rates. Bleday’s power surge has increased his draft stock, going from a likely first-round corner outfield prospect with an impressive track record of hitting to one of the best impacts bats in the class and a player who should be selected at the top of the first round. Defensively, Bleday moves well and could handle center field in a pinch, but he profiles best as a corner outfielder—where his newfound power should allow him to succeed.

Track Record: Yet another trade acquisition by the Marlins, Diaz joined outfielders Lewis Brinson and Monte Harrison, as well as righthander Jordan Yamamoto, in the deal that sent Christian Yelich to the Brewers. A stocky, 5-foot-10 second baseman, Diaz was drafted out of his Massachusetts high school by the D-backs in 2014 before being traded to the Brewers in a five-player deal that sent shortstop Jean Segura to Arizona in 2016.

Scouting Report: Diaz has the profile of an offensive second baseman, with plus raw power that he continues to tap into in games. He has hit at least 13 home runs in each of the last four seasons, with one evaluator theorizing that he could have a Rougned Odor-type impact in the majors. Diaz is at least an average hitter with a willingness to hit the ball the other way, and his strikeout (26 percent) and walk rates (13 percent) have remained relatively consistent. Diaz is an above-average second baseman who has worked to improve his footwork around the bag. He is a good athlete with at least average speed, and he stole a career-high 14 bases in 2018 while at Double-A Jacksonville and Triple-A New Orleans.

The Future: Diaz will likely return to New Orleans to start 2019 but could take over Miami's everyday second base role by the end of the season.

Track Record: Cabrera signed for $100,000 out of the Dominican Republic in 2015, which is so far proving to be a steal for the Marlins. After spending time in the Rookie-level Gulf Coast League in 2016 and pitching at short-season Batavia in 2017, Cabrera got his first taste of full-season ball in the low Class A South Atlantic League in 2018.

Scouting Report: Cabrera is similar to fellow Marlins righthanders Sandy Alcantara and Jorge Guzman in that he showcases a high-velocity fastball that has cleared the 100 mph mark. Standing at a lean 6-foot-4, Cabrera's plus fastball most regularly sits in the mid-90s as a starter with good, late life in the zone. He has a potential plus breaking ball and is working on a changeup that flashes plus at times but remains inconsistent. Like Guzman, Cabrera still needs to work on controlling his high-powered arsenal. His walk rate increased to roughly 3.8 walks per nine innings in 2018.

The Future: After spending the entirety of his age-20 season in low Class A, Cabrera will move to high Class A Jupiter in 2019. His ceiling is no lower than that of a mid-rotation starter, though he, like Guzman, could conceivably end up as a late-inning, power reliever.

Track Record: At a showcase for Lucius Fox in the Bahamas in February 2015, D-backs scout Craig Shipley was as intrigued by Fox at shortstop as he was by Chisholm, who was playing second base. Shipley saw Chisholm again a few weeks later, this time at short, and, impressed by Chisholm's actions and athleticism, wound up signing him for $200,000 that July. He has quickly turned himself into a bargain. After an impressive debut in Rookie-level Missoula, where he hit .281 with nine homers in 249 at-bats, Chisholm played in just 29 games in 2017 before a torn meniscus ended his season. He made up for lost time in 2018, with a solid three and a half months at low Class A Kane County followed by a monster six weeks in the high Class A California League. The 25 home runs he hit in 2018 set a single-season franchise record for a shortstop. He finished with a good showing in a limited role in the Arizona Fall League.

Scouting Report: Chisholm has an exciting array of tools. He has an athletic build and strong hands, and he generates a smooth, lefthanded uppercut swing that produces loud contact with easy power. His approach is aggressive, sometimes too aggressive. Coaches say he has a tendency to try too hard to generate power to his pull side, saying his swing can get too steep and his approach too pull-conscious. They believe when he keeps his approach simple, the power comes naturally to all fields. He strikes out a lot--nearly 30 percent of the time--and his high swing-and-miss rate on pitches in the zone is concerning. He also struggled against lefthanded pitchers. Defensively, Chisholm has everything it takes to stick at shortstop but needs to work on his consistency. He has smooth, flashy actions but is prone to lapses in concentration, making highlight-reel plays before committing errors on routine ones. He's an above-average to plus runner and stole 17 bases in 21 tries. Chisholm has a bubbling, energetic personality and is brimming with confidence, and coaches and team executives say he continued to work hard despite being disappointed about starting the season in Kane County.

The Future: Chisholm is a high-risk but high-reward stock. He has some rough edges to smooth over, but if it comes together he could be a shortstop with 20-homer, 20-steal potential. Parts of his game lack maturity, which could come in time. He could open 2019 in Double-A Jackson.

Track Record: After a breakout 2017 in which he hit 21 home runs and stole 27 bases with the Brewers' high Class A affiliate, Harrison was acquired by the Marlins for eventual National League MVP Christian Yelich in January. Harrison took a step back while getting his first taste of Double-A in 2018, though he continued showing off the power-speed combination that makes him such an enticing prospect despite his swing-and-miss issues.

Scouting Report: Perhaps the best pure athlete in the Marlins' system, Harrison has excellent bat speed and plus raw power. When he makes contact, he consistently hits the ball as hard as any Marlins prospect. Harrison has recently toned down his high leg kick and replaced it with a simpler toe tap he now uses as a timing mechanism. With fewer moving parts in his swing, Harrison is aiming to cut down his strikeout rate (37 percent in Double-A) without sacrificing too much power. Harrison started using the muted toe tap in the Arizona Fall League, where he hit .288/.374/.342 with three extra-base hits and 20 strikeouts in 73 at-bats. Defensively, Harrison has the range to play an above-average center field, though his plus arm strength would also play in right field.

The Future: Harrison may possess the highest upside of any position player in the Marlins' system, and he'll continue to work on making more consistent contact at Triple-A New Orleans in 2019.

The son of Victor Mesa, who was one of the top Cuban baseball players of the 1980s and '90s, Victor Victor Mesa was the No. 1 international free agent in 2018. The Marlins signed him and his 17-year-old brother Victor Mesa Jr. in October. Victor Victor signed for $5.25 million, which was the largest bonus in the 2018-19 international free agent class. The 22-year-old outfielder has been playing in Cuba's top professional league, Serie Nacional, since he was 16. While playing against much older competition, Mesa produced a .275/.334/.378 slash line with 10 home runs and 74 stolen bases in more than 300 career games, and he also went 3-for-7 with a pair of doubles in the 2017 World Baseball Classic. After leaving Cuba in May to train and establish residency in the Dominican Republic, the Mesa brothers were declared free agents by Major League Baseball in September before signing with the Marlins one month later.

Scouting Report: A premium athlete, Mesa is already considered a plus defender in center field, with some scouts grading both his arm and his speed as 70 tools. Mesa uses his speed well in the outfield, with a quick first step and strong route-running ability helping extend his range, while his arm routinely prevents baserunners from taking an extra base. Offensively, Mesa profiles best as a top-of-the-order hitter, most likely settling in as a No. 2 hitter. As a 20-year-old in Cuba, he hit .354/.399/.539 with seven home runs and 40 stolen bases, showcasing a potential plus hit tool. Mesa has shown quick bat speed, above-average barrel control and a solid approach at the plate in the past. With an inside-out swing, Mesa's power is probably no more than fringe-average, but some believers think he could grow into above-average power as he continues to mature. Mesa has been hampered by injuries throughout his career, and a desire to work with U.S. medical staffs and use major league facilities to stay healthy helped convince him to leave Cuba.

The Future: Mesa has a chance to be a cornerstone of the Marlins' ongoing rebuild thanks to his plus glove and ability to hit for average and steal bases near the top of the lineup. He will probably open 2019 at high Class A Jupiter, where he would be in close proximity to Victor Jr., who will likely begin at extended spring training. If Mesa's transition goes smoothly, he could make his major league debut by the end of 2020.

Track Record: Since being drafted by the Marlins with the No. 7 overall pick and signing for an above-slot $4,195,900 bonus in 2016, Garrett has completed just 15.1 professional innings in more than two and a half years. After not pitching professionally in his draft year, the Alabama native made just four starts for low Class A Greensboro in 2017 before having Tommy John surgery that June.

Scouting Report: The highest-drafted prep pitcher out of Alabama since righthander Rick James (No. 6, Cubs) in 1965, Garrett's true, north-to-south curveball was considered one of the best offspeed offerings in the 2016 draft. In addition to his potentially plus curveball, Garrett has a low-90s fastball that was reportedly in the 92-93 mph range in the Marlins' fall instructional league once he returned to the mound post-surgery. Known for having at least above-average command coming into the 2016 draft, Garrett also has a third-pitch changeup that's shown late fading life in the past.

The Future: Garrett should enter spring training with limited restrictions in 2019 as he looks to make his first professional appearance since May 2017. At 21 years old but with scant professional experience, Garrett could begin the season at low Class A Clinton before making his way to high Class A Jupiter.

Midseason update: Diaz improved his body over the offseason, and he has come back a more agile athlete without sacrificing his big-time power. He’s also earned a reputation as one of the better defensive first basemen in the minors.

Track Record: The cousin of former Marlins outfielder Cody Ross, Rogers was drafted with the 13th overall pick in 2017. After signing for $3.4 million, Rogers did not pitch in 2017, with the Marlins citing general fatigue after a long senior season for Carlsbad (N.M.) High. The 6-foot-6 lefthander made his pro debut in May 2018, eventually making 17 starts and completing 72.2 innings for low Class A Greensboro in his first season.

Scouting Report: Rogers has a smooth, fluid delivery that produces a seemingly effortless mid-90s fastball, routinely touching 96 mph with above-average command. Perhaps expected after a nearly year-long layoff from pitching competitively, Rogers' secondary stuff was wildly inconsistent in 2018. Neither his changeup nor slider graded out better than average, although both pitches flashed above-average potential. Rogers often struggled to land his offspeed pitches in the zone, allowing hitters to sit on his fastball and leading to Rogers' .295 opponent average. He struck out 10.53 batters per nine innings, however, showcasing the swing-and-miss potential he still possesses when his stuff is working.

The Future: With a full season under his belt, Rogers should be more prepared for high Class A Jupiter in 2019. Continued development of his slider and changeup will be vital for Rogers to reach his potential as a mid-rotation starter.

Track Record: The cousin of Red Sox third baseman Rafael Devers, Jose signed with the Yankees out of the Dominican Republic for $250,000 in 2016. He was then traded to the Marlins in December 2017, along with major leaguer Starlin Castro and fellow top-10 prospect Jorge Guzman, for Giancarlo Stanton, allowing Miami's ownership to clear $265 million of the then-$295 million left on Stanton's contract.

Scouting Report: A slightly built, glove-first shortstop, Devers is a much different prospect than his cousin. Lauded for his instincts, he stands out for his athleticism, footwork and soft hands at shortstop, all of which allow his average arm to play up from the left side of the infield. Devers' glove is clearly ahead of his lefthanded bat, but he has a contact-oriented swing and plus speed that allowed him to hold his own against older competition at two Class A stops despite his current lack of strength. Devers' power will likely never be more than fringe-average, but his plus defense and feel to hit should carry him up the ranks as a defense-first shortstop with the potential of an everyday regular.

The Future: Devers played the majority of his age-18 season in the low Class A South Atlantic League, though he received a promotion to high Class A Jupiter in August. He played in just two games in the Florida State League because of a minor injury, but he's fully healthy now and should spend most of 2019 with the Hammerheads.

Track Record: The Mariners' top draft pick in 2015, Neidert was one of three prospects traded to the Marlins in December 2017 for Dee Gordon and international bonus pool money. After being honored as the California League pitcher of the year in 2017, Neidert was even better as a 21-year-old in Double-A and was named the Marlins' minor league pitcher of the year with a stellar season in 2018.

Scouting Report: Listed at 6-foot-1, 180 pounds, Neidert isn't overpowering, though his fastball regularly sits between 91-93 mph. He locates his fastball well to both sides of the plate and uses a plus changeup to prohibit hitters from sitting on his fastball. Neidert's low-80s breaking ball doesn't grade out much better than average, but he isn't afraid to throw it in any count. All three of Neidert's pitches play up because of his plus control and ability to keep hitters off-balance.

The Future: Neidert may not have the upside to match other pitching prospects in the Marlins' system, such as fellow righthanders Sandy Alcantara, Jorge Guzman or Edward Cabrera, but he is the safest bet to maximize his potential. Neidert will begin 2019 in Triple-A New Orleans, with a late-season callup to Miami possible, if not likely.

Track Record: Drafted 13th overall in 2018, Scott signed with the Marlins for just north of $4 million, the largest draft bonus the organization has ever given a position player. A second-team high school All American, Scott attended Tampa's Plant High, the same school as current Astros outfield prospect Kyle Tucker, with whom Scott is often compared.

Scouting Report: Though he has an unusual gait, Scott is at least a plus runner, which helps him on the bases and in the outfield. He played exclusively center field in his pro debut, where he showed acceptable range, but he could move to a corner as he continues to fill out his 6-foot-4 frame. Scott has plus arm strength and he routinely threw in the low 90s as a high school pitcher. The 19-year-old fills out his five-tool potential with power that could develop as plus and solid feel to hit. His bat clearly--and expectedly--lagged behind his defense when the Marlins aggressively pushed him to low Class A Greensboro.

The Future: The Marlins sent Scott to the South Atlantic League with the intent of preparing him for that same level in 2019. With the Marlins moving affiliates from Greensboro, N.C., to Clinton, Iowa, Scott should expect to play a full season in the low Class A Midwest League, where Miami will hope to see the five-tool outfielder that made Scott such a highly touted draft pick.

Track Record: After signing with the Astros out of the Dominican Republic in 2014, Guzman was traded to the Yankees in November 2016 as part of the Brian McCann deal. Less than 13 months later, he was one of three players, along with minor league shortstop Jose Devers and major league second baseman Starlin Castro, traded to the Marlins for 2017 National League MVP Giancarlo Stanton.

Scouting Report: Guzman is one of the hardest-throwing starters in the minors, with his elite fastball consistently sitting in the upper 90s with a peak velocity of 103 mph. His control took a step back in 2018, however, with his walk rate going from 2.4 per nine innings in 2017 to 6.0 per nine in 2018. Guzman's changeup shows plus potential, but he needs to continue refining his slider to become an above-average offering. Improved control and continued development of his slider will go a long way for Guzman. He's hard to square up, but there are scouts who believe his future is in the bullpen.

The Future: Guzman challenges fellow righthander Sandy Alcantara for best pure stuff in the Marlins' system, and if everything clicks he could become a future frontline starter. After skipping the low Class A level entirely once he joined the Marlins' organization, he will likely begin 2019 with Double-A Jacksonville, where improving his control and reducing his walk rate will prove vital.

Track Record: A 12th-round pick by the Brewers in 2014, Yamamoto was one of four prospects traded to the Marlins in January as part of the Christian Yelich trade. Yamamoto dealt with minor injuries in his first year with the Marlins, but he finished the season strong in the Arizona Fall League.

Scouting Report: Yamamoto isn't overpowering, sitting mostly 89-93 mph with his fastball, but all of his stuff tends to play up because of his above-average to plus control. His late-breaking, downer curveball is his best secondary offering, flashing plus at times but consistently grading as an above-average pitch. Yamamoto has feel for a changeup, giving him three average-or-better pitches.

The Future: Despite being an undersized righthander, Yamamoto has performed well at each of his previous stops and was added to the Marlins' 40-man roster this offseason. He's made only three starts in Double-A, so he's likely to begin 2019 back in Jacksonville before a possible in-season promotion to Triple-A New Orleans. He has the potential of a mid-rotation starter.

Misner entered the year as one of the most exciting college hitters in the 2019 class thanks to an exciting set of tools that rival any college player in the class. However, a left foot injury limited him to just 34 games in the spring of 2018, and as a result Misner entered this spring with a limited track record compared to other top college hitters. Drafted in 2016 by the Royals in the 33rd round, Misner made it to campus at Missouri, where he had a solid freshman season. He broke out in a big way as a sophomore, hitting .360/.497/.576 with significantly improved walk rates when healthy. After rehabbing, Misner started to turn heads again in the fall by showing improved power and strength. He took it a step further and started to look like a top-10 pick after the first few weeks on the spring, when he showed great feel to hit and power. Once conference play began, however, Misner showed much more swing-and-miss, which started to raise questions about the true quality of his hit tool. Through his first 45 games this season, Misner posted a .289/.460/.522 slash line with five home runs, 49 walks and 47 strikeouts. But during the 20 SEC games in that same stretch, he hit just .211/.356/.324 with two home runs, 16 walks and 30 strikeouts—raising significant questions about Misner’s ability to handle high-level pitching. That could push him further down the board, but at some point his raw set of tools will be too exciting for teams to pass up. There’s not a single tool Misner doesn’t posses, as he’s an above-average runner at 6-foot-4, 213 pounds and plays a solid center field with good instincts and an explosive first step. He also has above-average arm strength that should serve him well in right field, where his size likely allows him to fit best, and he has the plus-plus raw power necessary to profile in a corner outfield position. Scouts think Misner has an outstanding feel for the strike zone, but a passive approach has hurt him at times this spring, putting him in poor spots to hit with authority. Grading Misner’s hit tool will be the biggest challenge for teams. He’s experimented with different loads and timing mechanisms this spring, but he has never been able to consistently put himself in a good, attacking position. There is risk with Misner because of his limited track record, but his tools give him tremendous upside as well.

Track Record: A 20th-round pick in 2014 who signed for an above-slot $400,000, Holloway never pitched above low Class A and had Tommy John surgery in June 2017. He recovered in time to make five appearances in 2018, throwing 7.2 scoreless innings in the Gulf Coast and New York-Penn leagues.

Scouting Report: Holloway has always had electric stuff, headlined by an upper-90s fastball that has touched 98 mph as recently as the instructional league in 2018. At 6-foot-4, he gets solid downhill angle on his fastball, which gets on hitters quickly, and he can snap off a potentially plus curveball. His changeup still needs refinement to become an above-average pitch, but it's his lack of innings and previous fringe-average control that are his biggest hurdles. Although it was an extremely small sample, it was encouraging to see Holloway walk zero hitters in 7.2 innings in 2018.

The Future: The Marlins decided to put Holloway on the 40-man roster this offseason and protect him from the Rule 5 draft. He has fully recovered from Tommy John surgery, and the 22-year-old should begin 2019 in high Class A Jupiter with the chance to move quickly as a high-risk, high-reward starting pitcher.

Nunez is among the best defensive shortstops in the 2019 class. As an undersized middle infielder at just 5-foot-9 and 160 pounds, there are some questions about the amount of offensive impact Nunez might possess, but there is no doubting his defensive skill and toolset. The Clemson commit projects as a plus defensive shortstop because of his plus arm and plus running ability, and he has elite, quick-twitch hands and a knack for throwing accurately from tough arm angles and while on the run. Watching Nunez play defense can be mesmerizing—both in pregame warmups and during the game—because of his fluid actions, immense athleticism and overall joy for the game. As an undersized, switch-hitting, high-aptitude defender, Nunez will draw comparisons to 2018 prep shortstop Xavier Edwards, who signed with the Padres after being drafted with the No. 38 overall pick last June. Edwards has a superior hit tool and better run times, however, while Nunez has more arm strength. Nunez has a solid swing from both sides of the plate, though it’s more natural from the right side. He’s faced good competition in Georgia’s 7A class, but he has well below-average raw power. Teams have been more willing to take undersized players with standout defensive ability high in the draft in recent years, and Nunez fits that to description well, but he’s also a player who could raise his stock significantly in three years if he goes to school and shows he can hit in the ACC. As it stands now, it wouldn’t be a surprise to see him drafted in the supplemental first or second round.

Track Record: The 69th overall pick in 2018, Banfield signed with the Marlins for $1.8 million, well above the slot value of $894,600 and the club's second-largest draft bonus in 2018. A Vanderbilt commit, Banfield was widely considered the draft's best defensive catcher among high school backstops.

Scouting Report: It all starts with defense with Banfield, who has the potential to be a plus defensive catcher and already possesses a plus arm. He is nimble behind the plate, with the lateral quickness and soft hands needed to become an above-average receiver. Banfield has plus raw power and hit three home runs in 48 at-bats as an 18-year-old in the low Class A South Atlantic League. Like many highly drafted preps, Banfield's bat will decide his future. He has shown above-average bat speed, helping him tap into his pull-side power, but there were some swing-and-miss concerns with Banfield going into the draft that he will have to answer.

The Future: Like first-rounder Connor Scott, Banfield was aggressively pushed to low Class A Greensboro for the final month of 2018 to prepare him for that level in 2019. He will likely spend most, if not all, of 2019 with newly affiliated Clinton of the Midwest League, where he'll look to improve his hit tool to combine with his plus defensive potential.

Track Record: The second cousin of 2007 NL MVP Jimmy Rollins and son of former minor leaguer Marcel Johnson, Osiris Johnson was the Marlins' second-round pick in 2018. One of the youngest players in his draft class, Johnson signed for $1.35 million instead of heading to Cal State Fullerton.

Scouting Report: Only 18 years old, Johnson is known for his quick-twitch athleticism and loud, albeit raw, tools. Johnson previously split time between shortstop and center field, but after working intensely on his arm action and footwork at shortstop with Rollins throughout high school, Johnson--and the Marlins--are committed to him sticking on the dirt. He has quick hands and at least an average arm to go along with plus speed, giving him a chance to be an above-average defender in the future. Despite being listed at just 6 feet and 181 pounds, Johnson has plus raw power and even shows a propensity to drive the ball the other way and into the right-center field gap. There were some swing-and-miss concerns with Johnson heading into the draft, and it will be his currently average hit tool that will decide his fate as an everyday shortstop in the future.

The Future: Johnson finished 2018 in low Class A and will head back to that level in 2019, where he'll continue to be one of the youngest players in the league.

Fitterer jumped on teams’ radars last fall at Perfect Game’s World Championship in Jupiter, Fla., showing big upside with a fastball that reached the mid-90s and a projectable, 6-foot-3, 185-pound frame. It’s been more of the same this spring, as Fitterer has continued to show present stuff, including a two-seam fastball with impressive late life and excellent feel to spin and manipulate a curveball that projects as a plus pitch. He also has feel for a changeup that should be average. Fitterer’s athleticism, frame and stuff could allow him to be drafted as high as the second round, but his fastball velocity does come and go depending on how much rest he’s had between starts. That’s not unusual for prep pitchers, and it shouldn’t hurt his stock too much, but he will also turn 19 years old just one month after the draft. Fitterer is committed to UCLA and expected to be an expensive sign.

Track Record: The younger brother of Blue Jays outfield prospect Dalton Pompey, Tristan was a college standout at Kentucky, where he was a career .321/.426/.521 hitter with 24 home runs and 21 stolen bases in 165 games. The Marlins drafted Pompey in the third round and signed him for $645,000 in 2018.

Scouting Report: Listed at 6-foot-4 and 200 pounds, Pompey is a corner outfielder who slots best in left field because of his average foot speed and below-average arm. With that defensive profile, it'll be Pompey's bat that carries him, and he should continue to hit for more power as he adds strength. Pompey's track record of hitting in the Southeastern Conference gives some scouts the belief that he'll be an above-average hitter with above-average power in the future, although he was seen as a divisive prospect entering the draft because there will be so much pressure on his bat to perform.

The Future: Pompey advanced to high Class A in 2018, performing well at each of his stops in the minors. Pompey will likely begin 2018 back at high Class A Jupiter, although his middle-of-the-order offensive production could carry him to Double-A Jacksonville by mid-season.

Track Record: Originally recruited as a preferred walk-on at North Carolina, Miller excelled in three years with the Tar Heels before the Marlins drafted him with the 36th overall pick in 2017. The 6-foot-1, 186-pound outfielder split his first full season of pro ball between high Class A Jupiter and Double-A Jacksonville, and then he ended the year with a stint in the Arizona Fall League.

Scouting Report: Considered by many to be a 70-grade runner, Miller led all Marlins minor leaguers with 40 stolen bases in 2018. His speed is also an asset in the outfield, where he has the potential to be an average center fielder with an average arm. Miller has hit just one home run in 185 minor league games, and he'll likely never have much more than fringe-average power. His line-drive swing, advanced contact skills and speed give him a chance to be a plus hitter, however, and he's a career .304 hitter with a strikeout rate below 13 percent in the minors.

The Future: After excelling in Class A, Miller struggled in his first taste of Double-A (.632 OPS) and didn't fare much better in the AFL (.641 OPS). He will likely head back to Double-A to begin 2019. Miller's lack of power limits his ceiling as an everyday regular, but his speed, hit tool and ability to fill in at all three outfield positions give him the safe landing spot of a fourth outfielder.

Track Record: A reliever during his collegiate days, Dugger was the Mariners' 18th-round pick in 2016. Midway through 2017, Dugger moved to the starting rotation and his prospect status spiked, leading the Marlins to ask for the 6-foot-2 righthander in the trade that sent Dee Gordon to Seattle.

Scouting Report: Dugger attacks hitters with both a four-seam and two-seam fastball, with the two-seamer usually sitting 92-93 mph with sink while his four-seamer is straighter but comes across in the mid-90s. Dugger also has a trio of offspeed pitches, including a low- to mid-80s slider that has become his main out-pitch against righthanders. Dugger's changeup and upper-70s curveball keep hitters off-balance and gives him five average-or-better pitches. Dugger's has at least average control of his entire arsenal.

The Future: Dugger has been a consistent performer since transitioning to the starting rotation, and he should get his first taste of Triple-A New Orleans in 2019. Dugger is one of several Marlins righthanded pitching prospects with a chance to become a mid- to back-of-the-rotation starter in the big leagues soon.

Track Record: The Phillies have popped a variety of intriguing players in the later rounds of their recent drafts, including Stewart, a 20th-round pick in 2015 who signed for $100,000. Stewart made his full-season debut in 2018 and was extremely efficient with his pitches, walking just 1.7 batters per nine innings and ranking second in the league with a 2.06 ERA. Stewart was included in a trade to the Marlins along with Sixto Sanchez and Jorge Alfaro in early February in exchange for J.T. Realmuto.

Scouting Report: Stewart has success by throwing strikes, getting groundballs and disrupting hitters' timing with his changeup and location. Stewart operates off an 89-93 mph fastball. He touched 95 mph, becoming another example of a Phillies prospect who was able to better use his legs and synchronize his body to squeeze out a little extra velocity. Strong and athletic, Stewart repeats his delivery with plus control, spotting his fastball well to both sides of the plate and getting a lot of grounders. Stewart's slider is below-average, but he's able to keep lefties and righties off balance with an above-average changeup.

The Future: Stewart needs to improve his breaking ball, but if he does he could fit as a back-end starter. He's scheduled to start 2019 in high Class A Jupiter.

View Players 11-30

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